Sand-delivering appliance.



PATENTED JULY 25, 1905.

G. A. BAKER. SAND DELIVERING APPLIANCE. APPLICATION IILEJ) JULY 20,1904. RENEWED APR. 17.1905.

Witueamw GEORGE A. BAKER, OF NORWICH, NEIV YORK.

SAND-DELIVERING APPLIANCE.

Specification of Letters Patent.

Patented July 25, 1905.

Application filed July 20,1904. Renewed April 17, 1905. Serial No.256,113.

To (all whom it may concern:

Be it known that I, GEORGE A. BAKER, a citizen of the United States,residing at Norwich, in the county of Chenango and State of New York,have invented certain new and useful Improvements in Sand-DeliveringAppliances; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to a sanding attachment for locomotives and otherform of motors traveling upon track-rails; and my invention consists ofcertain novel features of construction and combination of parts, thepreferred form whereof will be hereinafter clearly set forth, andpointed out in theclaims.

The prime object of my invention, among others, is to provide anattachment of the character specified which when placed in cooperationwith the usual sand-box or other sandreceptacle will insure that properdelivery of the required quantity of sand will be made by the simpleopening of a valve without regard to the condition of the weather or thesand acted upon by my discharging appliance.

A further object of my invention is to provide a discharging appliancewhich will deliver a suitable quantity of sand directly upon the surfaceof the track-rail in advance of the traction-wheels and which will notbecome clogged or inefficent, as is now common.

Other objects and advantages will be hereinaftcr made clearly apparent,reference being had to the accompanying drawings, which are made a partof this application, and in which Figure 1 shows a longitudinal centralsection of my sand delivering appliance and certain elements placed inoperative relationship therewith. Fig. 2 is a central sectional view ofmy sand-discharging appliance, while Fig. 3 shows part of theconstruction illustrated in Fig. 2 with a slightly different adjustment,whereby a less quantity of sand will be discharged.

For convenience of reference to the various details and cooperatingaccessories of my invention numerals will be employed, the same numeralapplying to a similar part throughout the several views.

Referring to the numerals on the drawings, 1 designates a sand-supplypipe leading from the sand-box of the locomotive or other point wherethe traction-sand is stored, while 2 and 3 indicate sections of mysand-holding receptacle, and while I have shown said receptacle asformed in two parts for convenience of manufacture it will be understoodthat said parts may be integrally formed, if preferred. The lower end ofmy sand-holder is cupshaped or tapered, as indicated by the numeral 4,said tapered terminal being provided with the discharging-nozzle 5,which is interiorly threaded and designed to receive the conveyer-pipe6, leading down to the traction-rail. Within the casing thus orotherwise constructed I provide a sand agitating and discharging deviceor valve comprising the body portion 7, suitably held in place withinthe casing members 2 and 3 by means of the cap or closure section 8,which latter is connected to the sand-conveying pipe 1 by the threadedflange 9 or the equivalent thereof.

The lower end of the body portion or casing 7 is provided with a bore oropening to receive a hollow piston rod or plunger 10, having on itsupper end the piston 11 of proper size to fit within the bore of thebody portion 7, and said piston is designed to play or reciprocatetherein, as will be hereinafter specifically set forth.

The piston 11 is held normally downward by means of a suitable spring12, disposed between the piston and the closure-section 8, as will beclearly obvious by reference to the drawings. The piston 11 is shown ina down- Ward or closed position in Fig. 1, and the pcripheral edgethereof is disposed over the lower end of the port 13. It thereforefollows that when the tension of the spring 12 is overcome and thepiston is moved upward the sand-piston will ride past the lower end ofthe port 13 and leave the same in an open position. I am enabled toraise the piston as desired by means of compressed. air introduced intothe casing 7 below the piston 11 by means of the air-conveying pipe 14cleading to any suitable source of supply, and since the piston rod orplunger 10 is provided with a bore 15 it follows that a blast of airwill be delivered at the lower end of said plunger directly into thebore of the sand-discharge pipe 6, and since the receptacle formed ofthe members 2 and 3, as above explained, is kept normally filled withsand through the mediation of the supply-pipe 1 it follows that noclogging of the sand will be possible at the upper end of thedischarge-pipe 6 or at the cooperating lower end of the tubularpiston-rod 10, since the blast of air delivered through the piston-rodwillset up a strong suction, which will disturb or preventallincrustation or tendency of the sand to solidify.

It will be seen that the discharge-pipe 1 is provided on its lower endwithin the casing with a plurality of openings, jiu'eferably a series ofslots 16. In order to prevent the discharge-pipe 6 from becomingclogged, as might be possible in cold weather, I surround saiddischarge-pipe with a suitable casing or jacket 17 of any preferred sizeand shape, whereby an annular chamber will be provided around said pipeand for any distance thereof, as may be deemed necessary. Cooperatingwith the jacket 17 is a steam-supydy pipe 18, while at the lower end,and preferably upon the side opposite the point of entrance of thesteam-supply pipe, I locate an exhaust-port 19, and it therefore followsthat inasmuch as the steam-supply pipe may be readily connected with thewaste steam from the exhaustpipe of the air-pump I utilize such steam aswould otherwise be wasted.

It will be seen that I have provided a reliably efiicient sand dischargeappliance which will prevent the sand from clogging or freezing, andthereby insure that a proper quantity of dry sand will be delivered tothe track-rail at the point desired.

Fromthe foregoing description it is obvious that should thesand-delivering ports 16 in the supply-pipe 1 for any reason becomeclogged said ports may be readily opened by disconnecting thesupply-pipe, which can be readily accomplished by providing a suitableunion above the sand-reccptacle 2 and 3 and stopping the end of thedischarge-pipe 6 and then introducing an air-pressure through the pipe14, and the result will be that since the air cannot pass downwardthrough the dischargepipe 6 it is directed upward through the ports fromthe inside thereof, thereby forcing out of said ports any obstructingmatter and causing such matter to pass out of the open end of thesupply-pipe, as will be readily obvious.

The quantity of sand to be discharged through the pipe 6 may be readilycontrolled or regulated by a proper adjustment of said discharge-pipewithin-the interiorly-threaded nozzle In Fig. 3 I have shown thedischarge-pipe as being adjusted in close proximity to the lower end ofthe tubular piston-rod 10, while in Fig. 2 said parts are more greatlyseparated, the result being that a greater quantity of sand will bedelivered by means of the adjustment shown in Fig. 2.

The various parts of my invention may be made of any suitable materialand any desired size deemed requisite to meet the requirements, andwhile I have described the preferred combination and construction ofparts I desire to comprehend. in this application all substitutes and.equivalents fairly falling within the scope of my invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The herein-described sand-delivering appliance comprising thecombination with the supply-pipe leading to the sand-box or other sourceof supply, of a sand-receivingchamber; an adjustable discharge-pipelocated at the lower end of said chamber; a casing 7 attached to thelower end of the supply-pipe and below the sand-ports in said pipe; apiston having a tubular stem fitting in said casing, said stem leadinginto direct communication with the upper end of the discharge-pipe; aport 13 in the casing leading from the upper to the lower end thereof;means to hold the piston normally downward whereby the lower end of saidport will be closed by the peripheral edge of the piston and. anair-supply pipe leading to the lower end of the casing 7 beneath thepiston whereby when air is introduced the piston will be raised and theair pass through said port into the upper end of the casing and thencedownward through the tubular pistonrod and into the contiguous end ofthe dischargepipe, all combined substantially as specified and for thepurpose set forth.

2. In a sand-delivering appliance, the combination with a sand-receivingchamber having an adjustable discharge-pipe located at the lower endthereof, of a jacket 17 surrounding said diseharge-pipe and suitablepipes connecting said jacket with an exhaustport whereby steam will beforced through said jacket and the discharge-pipe heated substantiallyas specified and for the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two sul scribing witnesses.

GEO. A. BAKER.

WVitnesses:

F. J. KERRIGAN, A. E. LUDINGTON.

